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Memorias de investigación
Artículos en revistas:
Numerical simulations of void linkage in model materials using a nonlocal ductile damage
Año:2007
Áreas de investigación
  • Materiales
Datos
Descripción
Experiments on the growth and linkage of 10 pm diameter holes laser drilled in high precision patterns into Al-plates were modelled with finite elements. The simulations used geometries identical to those of the experiments and incorporated ductile damage by element removal under the control of a ductile damage indicator based on the micromechanical studies of Rice and Tracey. A regularization of the problem was achieved through an integral-type nonlocal model based on the smoothing of the rate of a damage indicator D over a characteristic length L. The simulation does not predict the experimentally observed damage acceleration either in the case where no damage is included or when only a local damage model is used. However, the full three-dimensional simulations based on the nonlocal damage methodology do predict both the failure path and the failure strain at void linkage for almost all configurations studied. For the cases considered the critical parameter controlling the local deformations at void linkage was found to be the ratio between hole diameter and hole spacing.
Internacional
Si
JCR del ISI
Si
Título de la revista
INT J FRACTURE
ISSN
0376-9429
Factor de impacto JCR
1,003
Información de impacto
Volumen
148
DOI
Número de revista
3
Desde la página
205
Hasta la página
219
Mes
DICIEMBRE
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: A. Weck
  • Autor: D. Wilkinson
  • Autor: Javier Segurado Escudero (UPM)
  • Autor: H. Bohm
  • Autor: Fco. Javier Llorca Martinez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Materiales Estructurales avanzados y nanomateriales
  • Departamento: Ciencia de los Materiales
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